Developing a Number System
How Paleolithic peoples keep track of time
What are...
Tally marks on cave walls
The period/era in which the fractions we use today became common
A. Middle Ages
B. Baroque
C. Renaissance
What is...
The Renaissance Period
The "ancient" calculator
What is...
The abacus
What is the problem with tally marks
What is...
It was difficult to write larger numbers
The numerator (top number) in ancient Egyptian fractions
What is...
1
The machine we use today to do complex calculations
What is...
A calculator
Where were the numbers 0-9 invented?
A. Persia
B. India
C. Italy
in India
The name of this fraction tool (see image)
What is...
The abacus
The groups of people who knew how to use the "ancient" calculator
What are...
wealthy merchants and moneylenders
In what century were the numbers 0-9 invented?
What is...
The 3rd century BC
The type of fractions that originated with the abacus
A. Percentages
B. Numerators and Denominators
C. Decimal Fractions
What are...
Decimal fractions
The reasons why Arab mathematician Al-Khwarizmi is important
What is...
introducing 0-9 into North America and Europe and creating new procedures for computation ; could be written on paper
Three types of ancient numbering systems used... (tally marks do NOT count)
What are...
-Sumerian clay stones
-Bablylonian clay tablets
-Egyptian everyday objects such as rods
-Roman numerals
-fingers and toes
-shells
-knots (Persians, Incans)
The groups that invented the number system of fractions based on 60 that we use today
A. The Chinese
B. The Egyptians
C. The Samaritans and early Babylonians
What are...
The Samaritans and early Babylonians
The group that used doubling and halving to calculate
A. Russian peasants
B. Egyptians
C. Persians
What are...
Russian peasants